445441 has 8 divisors (see below), whose sum is σ = 471744. Its totient is φ = 419760.

The previous prime is 445433. The next prime is 445447. The reversal of 445441 is 144544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445441 - 2³ = 445433 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (445447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371 + ... + 2551.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

It is a Proth number, since it is equal to 435 ⋅ 2¹⁰ + 1 and 435 < 2¹⁰.

2⁴⁴⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

445441 is a deficient number, since it is larger than the sum of its proper divisors (26303).

445441 is a wasteful number, since it uses less digits than its factorization.

445441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 1280, while the sum is 22.

The square root of 445441 is about 667.4136648286. The cubic root of 445441 is about 76.3712788252.

Adding to 445441 its reverse (144544), we get a palindrome (589985).

The spelling of 445441 in words is "four hundred forty-five thousand, four hundred forty-one".